Finally the wait is over, and my mystery bulbs have sent up flowers, artfully photographed above. Catch up with the thrilling story so far, if you're not familiar with it, in threeoriginalinstalments.

The popular money was on Grape hyacinth, but that would appear to be proven wrong confronted with this new evidence. These flowers that have bloomed are a very delicate pale purple, with each bell less than a centimetre across. Note that the time of year is probably no clue as these are growing indoors in a pot.

So what are they? Send in your answers via the comments below.

Update (April 2010): Almost certainly they're Bluebells. Loads of them have now come up in the borders, looking rather more vibrant than these, but I think that's just the effect of growing them indoors.

Now that Spring has fully sprung in the garden I can see that lots of Bluebells have indeed come up in the borders, so these are almost definitely the same. They look a bit pasty and weird from being forced indoors, but I’m pretty certain they’re bluebells.